【model】EW-78BII
【Substitute】Fully compatible with original Canon EW-78BII
[product material]Made of environmentally friendly ABS, bayonet design, comparable to the original
[Compatible lens]
Applicable lens model: EF 28-135/f3.5-5.6 IS USM
EF 28-200/f3.5-5.6 USM
Canon TS-E45mmF2.8 shift lens
[feature of product]
The hood can be installed in reverse for easy carrying and storage
After installing the hood, you can also install the UV lens and lens cover
Block the side interference light source
Reduce halos and enhance photo color and saturation
Lotus-shaped design reduces black corners
【Hood function】:
The hood is a device that is attached to the front end of the lens of film cameras, digital cameras, and video cameras to block harmful light. Jinhui The inner wall of the hood has undergone multiple matting treatments. The reflectivity of the inner wall is only about 10%, and it will not refract the lens during use. The use of a hood can play a positive role in suppressing the picture halo, preventing stray light from entering the lens, blocking rain and snow from splashing, etc., and can give full play to the potential quality of the lens optics! The hoods currently available on the market adapt to all connection systems, thus giving consumers the option of not having to use original accessories. We use ISO as the standard Developed the universal connection method of top-tight bayonet structure and screw-type screw structure, and used lock nut and lock ring respectively.
1. It can prevent the entry of non-imaging light and avoid fog when shooting in backlight, side light or flash photography.
2. It can avoid the surrounding scattered light from entering the lens when taking photos with forward light and side light.
3. In lighting photography or night photography, it can prevent the surrounding interference light from entering the lens.
4. It can prevent accidental damage to the lens, and it can also prevent the finger from touching the surface of the lens by mistake. It can also shield the lens from wind, sand, rain and snow to some extent.
There are many sizes of hoods, and the one that matches the focal length of the lens should be selected. The shorter the focal length of the lens, the larger the angle of view and the shorter the hood. If the hood of a standard lens is used on a wide-angle lens, it is bound to produce
Consequences of not being able to image around the screen. On the contrary, it cannot play the role of shading. When using a zoom lens, it is best to be equipped with a self-use retractable lens hood.
The hood is widely used in backlight photography, generally speaking, it can avoid glare. However, if the light source is close, glare may still occur. At this time, you can use your hand to block the hood on the side where the light source is located. Minimize the influence of light source on imaging. Whether the glare is eliminated, you must observe it clearly in the viewfinder.
【Principle of hood】:
The hood is a device that is attached to the front end of the lens of film cameras, digital cameras, and video cameras to block harmful light. Lens hood for visible light lens
It is an indispensable accessory! The hood has a cylindrical shape, a rectangular shape, a petal shape, and so on.
Strictly speaking, the hood is an integral part of the lens optical system. A lens is composed of several or more than ten lenses. And every lens has two reflective surfaces, and a lens has dozens of reflective surfaces! The more reflective surfaces, the greater the impact on the lens imaging! Especially when shooting in backlight or side backlight, multiple reflective surfaces will interfere with each other to form a halo. Halo makes the picture dim(Color desaturation)Or flares appear. Sometimes the shots appear to be misty, but in fact this is caused by the unused lens hood, rather than the quality of the lens.
The inner wall of the high-quality hood is processed with multiple matting. The reflectivity of the inner wall is only about 10%, and it will not refract the lens during use. The use of a lens hood has a good effect and effect on suppressing image halos, preventing stray light from entering the lens, blocking rain and snow splashing, protecting the camera and lens from accidental collisions, and giving full play to the potential optical qualities of the lens.
When shooting outdoors, you should try to use a hood, which is very useful for improving the quality of shooting. We did a set of experiments under the same test conditions (backlight measurement, distant view). Shoot the two groups with and without the hood. Among them, the picture quality of a group of pictures using a hood is much higher than that of a group of pictures not using a hood! The performance is: the halo of the sky in the upper right corner of a group of pictures using the hood disappears, and the color saturation and clarity of the picture are obviously improved...
Using the hood is not only a means to improve the picture quality, but also a good professional habit, but also a rigorous photographer''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s professionalism!
Inventory status: In stock
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The battery products listed above and provided by our company are designed for the purpose of being compatible with a certain company''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s electronic equipment. The appearance of any product reference information, trademark or company name is only to indicate the applicable electronic device model of our product. Our website and this poster are not only unrelated to these companies, and all the products we sell are not manufactured by these companies.